Alright folks, big update:
Together with ElDonate, we have found a way to preserve the original theatrical 5.1 mix. We didn't get it from a LaserDisc either.
I found a copy of the theatrical 6-track DTS CD's, and using a very old plugin for a very old version of winamp, I was able to extract the the 5 channel stems for the movie. It is 5 channels because theatrical DTS had it's LFE data stored in the surrounds, and DTS processors sent anything below 80hz in the surrounds to the sub.
What we have here then is exactly what you heard in a DTS cinema. And it is glorious.
I'll let ElDonate chime in about the process he took to create these tracks, but in the meantime, PM me if you're interested in getting the track. We encoded it into DTS-HD MA for syncing with the Blu-ray. ElDonate, thank you very much for taking the time to do this!
I can only host it for about a week, so if you want it, let me know soon. Hopefully after that, someone else can host or up a torrent.
Mr. Hammond, I think we're back in business!